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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 992 · 40 questions
TalentJR

Engineer's tip (Match the property to the job): Ask: what must it do — keep water out, bend, let light through, carry current or stay cool? Metals and graphite conduct electricity; rubber, plastic, dry wood, glass, pottery and cloth insulate. Pick the material whose main property fits the job.

NameDateTime takenScore ___ / 40
  1. 1.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  2. 2.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  3. 3.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.True or false: a switch contact needs a waterproof material. (a) True (b) False
  5. 5.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  6. 6.Which of these needs an electrical conductor? (a) a car seat belt (b) a raincoat (c) a plug pin (d) a water tank
  7. 7.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) glass (d) dry wood
  9. 9.True or false: a water tank needs a flexible material. (a) True (b) False
  10. 10.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  11. 11.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) dry wood (d) steel
  13. 13.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  14. 14.Which of these needs a heat insulator? (a) a boat hull (b) a car windscreen (c) a water tank (d) an oven glove
  15. 15.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  16. 16.Which of these needs a waterproof material? (a) a car windscreen (b) a tea flask lining (c) a water tank (d) a plug pin
  17. 17.Which of these needs a waterproof material? (a) an umbrella cover (b) a hair band (c) a car seat belt (d) a window pane
  18. 18.True or false: an oven glove needs a heat insulator. (a) True (b) False
  19. 19.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  20. 20.Which of these needs a flexible material? (a) an umbrella cover (b) a water tank (c) a skipping rope (d) a window pane
  21. 21.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  22. 22.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  23. 23.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  24. 24.🔍 Which is the odd one out? (a) copper (b) steel (c) aluminium (d) cotton cloth
  25. 25.Which of these needs a transparent material? (a) a magnifier lens (b) a tea flask lining (c) a skipping rope (d) a plug pin
  26. 26.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  27. 27.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs a transparent material? (a) a roof sheet (b) a car seat belt (c) a spectacle lens (d) a water tank
  29. 29.Which of these needs a transparent material? (a) a boat hull (b) a car seat belt (c) a plug pin (d) a car windscreen
  30. 30.Which of these needs a waterproof material? (a) a roof sheet (b) a hair band (c) a car seat belt (d) a yoga mat
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) rubber (d) graphite
  32. 32.Which of these needs a flexible material? (a) a yoga mat (b) a water tank (c) a boat hull (d) a magnifier lens
  33. 33.True or false: a switch contact needs a heat insulator. (a) False (b) True
  34. 34.Which of these needs an electrical conductor? (a) a water tank (b) an umbrella cover (c) a cooking pot handle (d) the core of a wire
  35. 35.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  36. 36.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.Which of these needs a waterproof material? (a) a yoga mat (b) a skipping rope (c) a car windscreen (d) a boat hull
  38. 38.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) plastic (d) brass
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: an umbrella cover needs a flexible material. (a) False (b) True

Answer key

  1. transparent
  2. waterproof
  3. a conductor
  4. False
  5. copper
  6. a plug pin
  7. a conductor
  8. aluminium
  9. False
  10. waterproof
  11. an insulator
  12. dry wood
  13. flexible
  14. an oven glove
  15. False
  16. a water tank
  17. an umbrella cover
  18. True
  19. heat insulator
  20. a skipping rope
  21. plastic-coated cloth
  22. transparent
  23. flexible
  24. cotton cloth
  25. a magnifier lens
  26. wood or plastic
  27. an insulator
  28. a spectacle lens
  29. a car windscreen
  30. a roof sheet
  31. graphite
  32. a yoga mat
  33. False
  34. the core of a wire
  35. False
  36. an insulator
  37. a boat hull
  38. plastic
  39. a conductor
  40. False

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